import {z} from 'zod'

export type T2AVoiceSetting = {speed?: number | undefined, vol?: number | undefined, pitch?: number | undefined, voice_id: string, emotion?: string | undefined, latex_read?: boolean | undefined, add_silence?: number | undefined, english_normalization?: boolean | undefined, text_normalization?: boolean | undefined};

export type T2AAudioSetting = {sample_rate?: number | undefined, bitrate?: number | undefined, format?: string | undefined, channel?: number | undefined, force_cbr?: boolean | undefined};

export type PronunciationDict = {tone?: Array<string> | undefined, phonetic?: Array<string> | undefined};

export type TimbreWeights = {weight?: number | undefined, voice_id?: string | undefined};

export type VoiceModify = {modify_type?: string | undefined, modify_value?: number | undefined};

export type T2AStreamOption = {include_usage?: boolean | undefined};

export type T2aV2Req = {model: 'speech-2.5-hd-preview' | 'speech-2.5-turbo-preview' | 'speech-02-hd' | 'speech-02-turbo' | 'speech-01-hd' | 'speech-01-turbo', text: string, voice_setting?: T2AVoiceSetting | undefined, audio_setting?: T2AAudioSetting | undefined, pronunciation_dict?: PronunciationDict | undefined, timber_weights?: Array<TimbreWeights> | undefined, speed_rate?: number | undefined, stream?: boolean | undefined, language_boost?: string | undefined, subtitle_enable?: boolean | undefined, output_format?: string | undefined, voice_modify?: VoiceModify | undefined, stream_options?: T2AStreamOption | undefined, subtitle_type?: string | undefined, aigc_watermark?: boolean | undefined, with_propagator_meta?: boolean | undefined, timbre_weights?: Array<TimbreWeights> | undefined};

export type CreateApiV1T2aV2Args = {body: T2aV2Req};

export type CreateApiV1T2aV2Options = {baseUrl?: string | undefined, bearerAuth?: string | undefined, fetch?: typeof fetch | undefined};

export const t2ASubtitle = z.object({text: z.string().optional(), start_time: z.number().optional(), end_time: z.number().optional()});

export const streamData = z.object({audio: z.string().optional(), status: z.number().int().optional(), ced: z.string().optional(), subtitle_file: z.string().optional(), subtitle: t2ASubtitle.optional()});

export const t2AUsage = z.object({total_characters: z.number().int().optional(), total_tokens: z.number().int().optional()});

export const t2AExtraInfo = z.object({usage: t2AUsage.optional()});

export const t2aV2Resp = z.object({data: streamData.optional(), extra_info: t2AExtraInfo.optional(), trace_id: z.string().optional()});

export const validateResponse = async <Output>(
  schema: {
    readonly '~standard': {
      readonly validate: (value: unknown) => ({ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }) | Promise<{ readonly value: Output; readonly issues?: undefined } | { readonly issues: ReadonlyArray<{ readonly message: string; readonly path?: ReadonlyArray<PropertyKey | { readonly key: PropertyKey }> | undefined }> }>
    }
  },
  value: unknown
): Promise<Output> => {
  const result = await schema['~standard'].validate(value)

  if (result.issues !== undefined) {
    const detail = result.issues
      .map(({ message, path }) =>
        path?.length
          ? `${path.map((segment) => String(typeof segment === 'object' ? segment.key : segment)).join('.')}: ${message}`
          : message
      )
      .join('; ')

    throw new Error(`Response does not match the schema: ${detail}`, { cause: { issues: result.issues } })
  }

  return result.value
};

/**
 * Text to Audio V2
 * 
 * POST /v1/t2a_v2
 */
export const createApiV1T2aV2 = async (args: CreateApiV1T2aV2Args, options?: CreateApiV1T2aV2Options) => {
const {baseUrl = "https://api.minimax.io", fetch: fetchFn = fetch, bearerAuth} = options ?? {}

const query = new URLSearchParams()
const headers = new Headers()
headers.set('content-type', "application/json")
headers.set('accept', "application/json")

if (bearerAuth !== undefined) headers.set('authorization', `Bearer ${bearerAuth}`)

const url = `${baseUrl.replace(/\/+$/, '')}/v1/t2a_v2${query.size > 0 ? `?${query}` : ''}`

const res = await fetchFn(url, {method: "POST", headers, body: JSON.stringify(args.body)})

if (!res.ok) throw new Error(`Request failed with status ${res.status}`, {cause: {status: res.status, body: await res.text()}})

return validateResponse(t2aV2Resp, await res.json())
};